Windows/OS X: Dashlane, one of our favorite password management tools, unveiled a new service called Dashlane Courier that allows users to send secure, encrypted messages and passwords to anyone—whether they use Dashlane or not—that self-destruct 30 minutes after they're opened.

Courier is ideal for sending passwords to others—if you've reset someone's password for them, or you need to share a personal password with a loved one over email but don't want that message sent in the clear. The service is also useful for other sensitive information, like credit card numbers, or even just personal notes you don't want others to read. Messages sent via Dashlane Courier are AES-256 encrypted, and while you need Dashlane installed on your desktop to send a message, the recipient doesn't need to be a Dashlane user to read it.

All you need is the latest version of Dashlane installed and a Dashlane account—even if you don't use it to manage your passwords, you can still use it to send private messages. Your recipient gets an email that they have a secure message to view, along with a link to view the message and a key to enter to read it. As soon as that link is clicked, the 30-minute clock starts ticking for your recipient to save or download the information inside. Afterwards, the message is deleted and gone forever. You can read more about the new feature here.